package com.ehe.gateway.service.impl;

import com.ehe.common.core.constant.Constants;
import com.ehe.common.core.exception.CaptchaException;
import com.ehe.common.core.utils.IdUtils;
import com.ehe.common.core.utils.ImageCodeUtil;
import com.ehe.common.core.utils.StringUtils;
import com.ehe.common.core.utils.sign.Base64;
import com.ehe.common.core.web.pojo.entity.AjaxResult;
import com.ehe.commons.redis.service.RedisService;
import com.ehe.gateway.config.properties.CaptchaProperties;
import com.ehe.gateway.service.ValidateCodeService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.FastByteArrayOutputStream;

import java.io.IOException;
import java.util.concurrent.TimeUnit;

/**
 * 验证码实现处理
 *
 * @author ruoyi
 */
@Service
public class ValidateCodeServiceImpl implements ValidateCodeService {

//    @Resource(name = "captchaProducer")
//    private Producer captchaProducer;
//
//    @Resource(name = "captchaProducerMath")
//    private Producer captchaProducerMath;

    @Autowired
    private RedisService redisService;

    @Autowired
    private CaptchaProperties captchaProperties;

    /**
     * 重写验证码
     * @return
     * @throws IOException
     * @throws CaptchaException
     */
    @Override
    public AjaxResult createCapcha() throws IOException, CaptchaException {
        AjaxResult ajax = AjaxResult.success();
        String codeKey = IdUtils.simpleUUID();
        boolean captchaOnOff = captchaProperties.getEnabled();
        ajax.put("captchaOnOff", captchaOnOff);
        if (!captchaOnOff)
        {
            return ajax;
        }
        String verifyKey = Constants.CAPTCHA_CODE_KEY + codeKey;
        // 生成验证码
        FastByteArrayOutputStream out = null;
        String code = ImageCodeUtil.outputVerifyImage(140, 32, out, 4, "6666");
        redisService.setCacheObject(verifyKey, code, Constants.CAPTCHA_EXPIRATION, TimeUnit.MINUTES);
        // 转换流信息写出
        try
        {
            ajax.put("uuid", codeKey);
            ajax.put("img", Base64.encode(out.toByteArray()));
        } catch (Exception e) {
            return AjaxResult.error(e.getMessage());
        }
        return ajax;
    }

    @Override
    public void checkCapcha(String code, String uuid) throws CaptchaException {
        if (StringUtils.isEmpty(code))
        {
            throw new CaptchaException("验证码不能为空");
        }
        if (StringUtils.isEmpty(uuid))
        {
            throw new CaptchaException("验证码已失效");
        }
        String verifyKey = Constants.CAPTCHA_CODE_KEY + uuid;
        String captcha = redisService.getCacheObject(verifyKey);
        redisService.deleteObject(verifyKey);

        if (!code.equalsIgnoreCase(captcha))
        {
            throw new CaptchaException("验证码错误");
        }
    }


    /**
     * 生成验证码
     */
//    @Override
//    public AjaxResult createCapcha() throws IOException, CaptchaException
//    {
//        AjaxResult ajax = AjaxResult.success();
//        boolean captchaOnOff = captchaProperties.getEnabled();
//        ajax.put("captchaOnOff", captchaOnOff);
//        if (!captchaOnOff)
//        {
//            return ajax;
//        }
//
//        // 保存验证码信息
//        String uuid = IdUtils.simpleUUID();
//        String verifyKey = Constants.CAPTCHA_CODE_KEY + uuid;
//
//        String capStr = null, code = null;
//        BufferedImage image = null;
//
//        String captchaType = captchaProperties.getType();
//        // 生成验证码
//        if ("math".equals(captchaType))
//        {
//            String capText = captchaProducerMath.createText();
//            capStr = capText.substring(0, capText.lastIndexOf("@"));
//            code = capText.substring(capText.lastIndexOf("@") + 1);
//            image = captchaProducerMath.createImage(capStr);
//        }
//        else if ("char".equals(captchaType))
//        {
//            capStr = code = captchaProducer.createText();
//            image = captchaProducer.createImage(capStr);
//        }
//
//        redisService.setCacheObject(verifyKey, code, Constants.CAPTCHA_EXPIRATION, TimeUnit.MINUTES);
//        // 转换流信息写出
//        FastByteArrayOutputStream os = new FastByteArrayOutputStream();
//        try
//        {
//            ImageIO.write(image, "jpg", os);
//        }
//        catch (IOException e)
//        {
//            return AjaxResult.error(e.getMessage());
//        }
//
//        ajax.put("uuid", uuid);
//        ajax.put("img", Base64.encode(os.toByteArray()));
//        return ajax;
//    }

    /**
     * 校验验证码
    */
//    @Override
//    public void checkCapcha(String code, String uuid) throws CaptchaException
//    {
//        if (StringUtils.isEmpty(code))
//        {
//            throw new CaptchaException("验证码不能为空");
//        }
//        if (StringUtils.isEmpty(uuid))
//        {
//            throw new CaptchaException("验证码已失效");
//        }
//        String verifyKey = Constants.CAPTCHA_CODE_KEY + uuid;
//        String captcha = redisService.getCacheObject(verifyKey);
//        redisService.deleteObject(verifyKey);
//
//        if (!code.equalsIgnoreCase(captcha))
//        {
//            throw new CaptchaException("验证码错误");
//        }
//    }
}
